Pseudo-continuously variable transmission with uninterrupted shift

A transmission, intermediate shaft technology, applied in the direction of transmission, gear transmission, belt/chain/gear, etc., can solve problems such as limitation, ratio increase, and limited range of output ratio

CN114502859APending Publication Date: 2022-05-13R R 拉金德兰 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2022-05-13

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Abstract

The present invention relates to sets of driving and driven gears, including non-circular gears or Geneva pins and wheel mechanisms, which work together, like continuously variable transmissions independent of friction forces. Because the chain and sprocket system operates as a cone and belt system, and the drive and driven gear systems, although discrete but uninterrupted, shift ratios, they may be regarded as pseudo-continuously variable transmissions. A planetary gear system is utilized that allows the output to be continuous from forward to reverse, including neutral. With the segmentation of the circular and non-circular gears, upshifts and downshifts are accomplished by transiently transferring the driveline to the next gear ratio via the non-circular gear during the transition. The invention also provides several ways to achieve uninterrupted shift capability of a multi-speed transmission, eliminating the need for synchronizers and being directly connected to their respective shafts via dog clutches or the like.
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Description

[0001] Cross References to Related Applications

[0002] 1. Temporary application

[0003] Application No.: 62 / 859,095

[0004] Title: Pseudo CVT

[0005] 2. PCT application

[0006] Application No.: PCT / US 19 / 41748

[0007] Title: Pseudo-CVT, Multi-speed Transmission Capable of Uninterrupted Shifting (MSTUS) technical field

[0008] The present invention involves smooth uninterrupted synchronization prior to a gear change. Today, geared bicycles have multiple sprockets of different sizes that are placed coaxially and offset from each other, and the chain is traveled distally with a derailleur to align with a particular sprocket. Another way to accomplish this is to keep the chain in the same plane, rather than moving the sprockets of the various gears into and out of the chain plane. The same idea can be extended to ordinary gears, pulleys and cage pins. Spring loaded sections forming different full size gears (including non-circular gears) move into and out of the ope...

Examples

Embodiment Construction

[0130] Parts list:

[0131] 1) The shaft of the small drive gear

[0132] 2) Shaft of small driven gear

[0133] 3) Fix the small drive gear

[0134] 4) Fixed small driven gear 4

[0135] 5) Drive the large gear section

[0136] 6) Driven bull gear section

[0137] 7) Drive conversion gear section

[0138] 8) Driven conversion gear section

[0139] 9) Section guide

[0140] 10) Spring

[0141] 11) Roller

[0142] 12) Stopper

[0143] 13) Smaller drive gear (no shaft)

[0144] 14) Drive conversion gear (crescent shape) with smaller drive gear 13 profile on the inside

[0145] 15) Larger drive gear with smaller drive gear 13 profile on the inside with dimples for shifting gears

[0146] 16) Smaller driven gear (no shaft)

[0147] 17) Driven conversion gear (crescent shape) with smaller drive gear 13 profile on the inside

[0148] 18) Larger driven gear with smaller drive gear 13 profile on the inside with pockets for shifting gears

[0149] 19) Drive non-circular ...